28m
    Bornholm, Denmark

    KOL-73

    Best months: Jul–Sep

    Why dive here

    With 66+ marine species recorded in the area - including jellyfish lake - KOL-73 offers some of Bornholm's richest wreck diving. Water ranges 3-18°C, warmest July, August, September.

    Best timeJul–Sep
    WetsuitA 5mm wetsuit
    Marine lifeJellyfish Lake · 66+ species recorded
    Water3-18°C · warmest July, August, September
    CharacterWreck dive · max 28m

    KOL-73 isn’t about big pelagics or colourful reefs; it’s about history, cold water, and the quiet dignity of a wreck. This old trawler, sitting upright at 28 meters, is remarkably intact. We love how it’s become a home for so much life in the Baltic. Drop down and you’ll find yourself finning over a deck draped in feathery hydroids and anemones, with shoals of small cod drifting through the wheelhouse. Our favourite part is poking around the stern, where the prop is still visible, encrusted with barnacles. It’s an easy wreck to penetrate for those with the right training; the holds are open and inviting, but always mind your buoyancy – the silt here can be easily disturbed. Visibility can vary, often better in late summer, but even on a murkier day, the outline of the trawler emerging from the gloom has a certain dramatic appeal. It’s a site for divers who appreciate the story beneath the waves, for those who find beauty in rust and resilience, and who don’t mind a chillier dive.

    Typical KOL-73 Dive Profile

    10m20m30mSafety Stop0m28m max~30 min estimated bottom time

    Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.

    Safety Notes

    Depth of 28m - Advanced Open Water certification recommended.

    Wreck site - avoid penetration without wreck diving certification. Watch for sharp metal and entanglement hazards.

    Cold water this month (avg 14°C). Drysuit or thick wetsuit (7mm+) recommended.

    Always perform a 3-minute safety stop at 5m before surfacing.

    Today06:1917:1210h 53m daylightGolden hour 16:24

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    Conditions

    Ocean conditions, forecast and tides for KOL-73

    KOL-73 Ocean Conditions

    Monthly averages for KOL-73, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (54.94, 13.85) (7km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    14°C

    57°F · Range: 11.7–16.3°C

    Air Temperature

    12°C

    53°F

    Wind Speed

    8.16 m/s

    15.9 knots

    Atmospheric Pressure

    1013.3 hPa

    Based on 4 years of monitoring data · Data sources: Open-Meteo marine data

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